30112213 has 2 divisors, whose sum is σ = 30112214. Its totient is φ = 30112212.

The previous prime is 30112183. The next prime is 30112217. The reversal of 30112213 is 31221103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21003889 + 9108324 = 4583^2 + 3018^2 .

It is an emirp because it is prime and its reverse (31221103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30112213 - 2⁹ = 30111701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30112193 and 30112202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30112217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056106 + 15056107.

It is an arithmetic number, because the mean of its divisors is an integer number (15056107).

Almost surely, 2^30112213 is an apocalyptic number.

It is an amenable number.

30112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112213 is an equidigital number, since it uses as much as digits as its factorization.

30112213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 30112213 is about 5487.4596126076. The cubic root of 30112213 is about 311.1101817669.

Adding to 30112213 its reverse (31221103), we get a palindrome (61333316).

The spelling of 30112213 in words is "thirty million, one hundred twelve thousand, two hundred thirteen".